Hiro Koiso Racing Gets 3 Land Speed Records At 10th Annual Bonneville BUB Speed Trials

hiro1Hiro2The Las Vegas based Hiro Koiso Racing team made a big comeback on the salts of Bonneville. It succeeded in getting 3 new land speed records to include 2 AMA national records – 3000-MPS-PBG class 210.646 mph (339.001 km/h)*, 3000-MPS-PBG class 214.342 mph (344.950 km/h)* and a FIM world record of 214.653mph (345.450 km/h)* in 3000cc partially streamlined class.

New world record is 22 mph above the existing record.  Hiro also made a single (non-record) pass of 198.941mph(320.164km/h) without fairing.  Total of 15 records for the team have been set at BUB trials since 2008.

Since the vehicle suffered massive fire damage during 2012 race, it took the team all year to rebuild the entire motorcycle back to racing state. The bike is a highly modified 2006 Harley-Davidson DYNA powered by JIMS135 TwinCam Race engine modified by T-Man Performance. ProCharger B-1 supercharger force feeds air to the engine resulted in 271 hp to the rear tire.

7 Responses to “Hiro Koiso Racing Gets 3 Land Speed Records At 10th Annual Bonneville BUB Speed Trials”

  1. 1 Joe Mielke Sep 10th, 2013 at 9:10 am

    Right on Hiro! Congratulations to you, your team and your family! Proud of all your efforts!

  2. 2 CafeSportyTC Sep 10th, 2013 at 10:22 am

    yeehaw…that looks like fun… must make it really interesting on the salt… cant imagine..

  3. 3 Patrick Gaffney Sep 10th, 2013 at 10:31 am

    Congratulations to the Hiro Racing for this years success. Glad to see
    the big inch based 135″ JIMS Engine is putting records on the books.
    Hiro’s hard work, passion and persistance paid off. Your support from
    JIMS, T- Man Performance and Pro Charger are the best are the best
    in the industry.

  4. 4 highrpm Sep 10th, 2013 at 6:32 pm

    like the look of long wheelbase with the stretched swing arm. a nice mod for any street sportster.

  5. 5 ray c wheeler Sep 10th, 2013 at 7:39 pm

    Congratulations Hiro and Team……

    BUB Speed Trials 11th year will just as special….

    See ya there……

  6. 6 Jezza Sep 11th, 2013 at 1:56 am

    Congratulations to Hiro and the team from Tokyo. A huge effort and well deserved result!

  7. 7 rags Sep 12th, 2013 at 4:37 am

    congrats on your records.awesome

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Cyril Huze